Home / 842,916.40-1,261,264.20-768,266.80

Finding the Fourth Proportional to 842,916.40, 1,261,264.20 and 768,266.80

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Solution

The fourth proportional to 842,916.40, 1,261,264.20 and 768,266.80 is: 1,149,565.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,916.40 : 1,261,264.20 = 768,266.80 : x
  2. Step 2: Convert to fraction form
    842,916.40/1,261,264.20 = 768,266.80/x
  3. Step 3: Cross multiply
    842,916.40x = 1,261,264.20 × 768,266.80
  4. Step 4: Simplify right side
    842,916.40x = 968,987,410,888.56
  5. Step 5: Solve for x
    x = 968,987,410,888.56/842,916.40
  6. Step 6: Final answer
    x = 1,149,565.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.